Modular block



FIG. 1 is a perspective view of a modular block embodying our new design taken from a point upwardly and forwardly to the right of the front facing thereof;

FIG. 2 is a perspective view of the modular block shown in FIG. 2 taken from a point downwardly and forwardly to the right of the front facing thereof. 

The ornamental design for a modular block, as shown. 